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From: "Jose Manuel" <jpradoes@telefonica.net>
To: <rsgb_lf_group@blacksheep.org>
References: <001601c65a31$e3fd3f40$05001aac@joan> <000c01c65af3$de777000$2201a8c0@pcroelof> <Pine.OSF.4.56.0604091658520.29062@plato.ucs.mun.ca>
Date: Mon, 10 Apr 2006 01:01:03 +0200
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Subject: LF: Re: Miniwhip and Intermod
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Status: O

Hi Joe and all:

Can you tell me where can I find the Miniwhip antenna description?
I think that is a very small whip, so about the sensitivity, is it  enoug=
h=20
to receive the atmospheric noise at 137 kHz?
Thanks in advance.

73 de Jos=E9, EA1PX


----- Original Message -----=20
From: "Joe Craig" <jcraig@mun.ca>
To: <rsgb_lf_group@blacksheep.org>
Sent: Sunday, April 09, 2006 9:41 PM
Subject: LF: Miniwhip and Intermod


> Dear Group,
>
> I recently built Roelof's miniwhip e-probe and reported on
> the reflector that there was trouble with intermod when
> close to MF AM transmitter sites.  This problem originates
> with the receiver and not the probe itself.
>
> This was verified by attenuating the output of the probe
> and hearing signals on 137 kHz what could not be heard
> without the attenuator because of interference.
>
> Thanks to Roelof for a good design and sharing it those who
> asked and his tip about the attenuator!  Thanks also to the
> kind VE3 who sent me the semiconductors I was having trouble
> locating whin building the PA0RTD miniwhip.
>
>
> Still QRV on 137.777 kHz sending 'N' at QRSS60 after sunset.
>
> 73
> Joe VO1NA
>
>=20